- COB
- Chip-on-Board. An LED packaging method where LED chips are mounted and encapsulated directly on the board, often used in fine-pitch applications.
- Front Maintenance
- A service method where modules, power supplies or internal components can be accessed from the front of the LED display, reducing the need for rear service space.
- Grayscale
- The number of brightness levels the system can reproduce. Higher effective grayscale can improve gradients and low-brightness detail.
- HDR
- High Dynamic Range. A display and content approach designed to reproduce a wider range of brightness and color information.
- IP Rating
- A standardized protection code that describes resistance to solids and water. For example, IP65 and IP66 indicate different levels of environmental protection.
- LED Module
- A replaceable display unit containing LEDs and supporting electronics. Multiple modules are assembled into cabinets or larger display structures.
- Moiré
- An interference pattern that can appear when a camera sensor interacts with the repeating pixel structure of an LED display.
- Nits
- A luminance unit equal to candela per square meter. It is commonly used to specify LED display brightness.
- Pixel Pitch
- The physical distance between neighboring pixel centers, measured in millimeters. It is a key input for viewing distance and native resolution.
- PWM
- Pulse-Width Modulation. A method of controlling LED brightness by rapidly switching the LED output on and off.
- Refresh Rate
- The number of screen refresh cycles per second, measured in hertz. Common LED display specifications include 1920 Hz, 3840 Hz and 7680 Hz.
- Rear Maintenance
- A service method requiring technicians to access components from behind the display, usually requiring dedicated rear clearance or a service corridor.
- Scan Rate
- The ratio describing how LED rows are multiplexed during driving. Common examples include 1/8, 1/16 and 1/32 scan.
- SMD
- Surface-Mounted Device. A common LED packaging method where packaged LEDs are mounted onto the module PCB.
- Viewing Distance
- The distance between the viewer and the LED display. The closest important viewing distance is a major input when selecting pixel pitch.
- White Balance
- The adjustment of red, green and blue output so that neutral white is reproduced consistently at the intended color temperature.
